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by mwrich4
Sat Jan 04, 2020 5:41 pm
Forum: Advanced users
Topic: Network (Ethernet) Boot for Pi4
Replies: 9
Views: 1359

Re: Network (Ethernet) Boot for Pi4

Thanks for the updates .. Yes I did see the discussion of beta support, it didn't seem like that thread discussion led to a discussion of a stable version. That was back in September. Searching for network boot or netboot, didn't show any more recent mentions. EDIT: the RPI Hardware Doc still says "...
by mwrich4
Sat Jan 04, 2020 5:33 pm
Forum: Advanced users
Topic: Network (Ethernet) Boot for Pi4
Replies: 9
Views: 1359

Re: Network (Ethernet) Boot for Pi4

Since this thread has had no updates, is it safe to assume Network (Ethernet) Boot for Pi4 is not available yet?
by mwrich4
Tue Dec 31, 2019 9:54 pm
Forum: Graphics, sound and multimedia
Topic: Looking To Build Internet Radio Stream Receiver
Replies: 18
Views: 660

Re: Looking To Build Internet Radio Stream Receiver

( Volumio adding web radio stream to favorites ) Browse -> Web Radio -> My Web Radio (click the 3 dots to the right) -> +Add Web Radio The station play info is there, but it'll be not nicely formatted. It does show info and plays well. Except for stream resets, my server is up for months at a time. ...
by mwrich4
Tue Dec 31, 2019 8:42 pm
Forum: Graphics, sound and multimedia
Topic: Looking To Build Internet Radio Stream Receiver
Replies: 18
Views: 660

Re: Looking To Build Internet Radio Stream Receiver

I found an article that pointed out the URL strings are in the page source for the iHeart web interface. Since I only like 1 station so far, I found these strings in the page source (Classic Rock) : https://c3.prod.playlists.ihrhls.com/4426/playlist.m3u8 https://c3icy.prod.playlists.ihrhls.com/4426_...
by mwrich4
Mon Dec 30, 2019 7:18 pm
Forum: Beginners
Topic: Why doesn't Raspbian have a Print utility?
Replies: 50
Views: 2230

Re: Why doesn't Raspbian have a Print utility?

I'm not aware of any Linux GUI print utilities, and yes, that does seem to be a big hole in the Linux ecosystem. Not sure what can be done about it, I'll have a word with the desktop guy in the new year, he may have something in mind, but the fact it's not been done might indicate it's actually qui...
by mwrich4
Mon Dec 30, 2019 7:05 pm
Forum: Graphics, sound and multimedia
Topic: Looking To Build Internet Radio Stream Receiver
Replies: 18
Views: 660

Re: Looking To Build Internet Radio Stream Receiver

I've been using the free version of Volumio on my RPI3. It is very stable. I run it 24/7 to play my favorite iHeart streams into a Lepai Amp driving 12-inch 3-ways. All for less power than an incandescent night lamp (7W) Volumio also provides NAS services for any connected storage on that pi. My Win...
by mwrich4
Sun Oct 20, 2019 8:15 pm
Forum: General discussion
Topic: Pi 3 A +. What is it for?
Replies: 52
Views: 3134

Re: Pi 3 A +. What is it for?

System development is far more encompassing than just expecting a computer can do anything. You should always consider the workload and program mix when trying to use a low-cost system to do tasks. Pi 3A+ would be great for some turnkey solutions. Most devs use a full-power system for fast build, tr...
by mwrich4
Sun Oct 20, 2019 8:05 pm
Forum: General discussion
Topic: Raspi 4 file server disappointing transfer speed, degradation and segfaults
Replies: 50
Views: 3579

Re: Raspi 4 file server disappointing transfer speed, degradation and segfaults

Issues like this are commonly OS internal and shouldn't be blamed on hardware. Many vendors SELL versions of linux that are well tested so that these scaling issues are identified and fixed, BUT they retain the cure in their own variant because it costs quite a bit to make a solid, scalable OS. Free...
by mwrich4
Sun Sep 29, 2019 5:45 pm
Forum: Advanced users
Topic: Multiprocessing across 2 Pis
Replies: 7
Views: 533

Re: Multiprocessing across 2 Pis

Last time I did this it was on much less powerful hardware. Instead of thinking about a generalized processing solution such as clustering, I split my design down into an autonomous motor control module instructed by a more general-purpose system controller. This way, high use CPU consumers such as ...
by mwrich4
Thu Sep 12, 2019 3:37 pm
Forum: Advanced users
Topic: at least one HDMI mode on the Rpi4 has changed
Replies: 19
Views: 1387

Re: at least one HDMI mode on the Rpi4 has changed

I tried the images linked above on the latest 'rpi-update'(ed) code for my Pi4 connected to the Lapdock screen and still no rainbow and no 4 raspberries. I also don't see the desktop (set at 1366x768). I have hdmi_force_hotplug=1 so the system will allow VNC with no monitor connected. Let me know if...
by mwrich4
Thu Sep 12, 2019 3:13 pm
Forum: Advanced users
Topic: at least one HDMI mode on the Rpi4 has changed
Replies: 19
Views: 1387

Re: at least one HDMI mode on the Rpi4 has changed

OK, here a link to a zip of the test firmware. https://drive.google.com/open?id=1xBfTKHzreJ3-LhKwooNWC2Lh5Sr8apaE This is very much beta. I'm interested to see whether it correctly detects odd monitors with non-standard timings. I don't have anything like that so am relying on EDID dumped from othe...
by mwrich4
Thu Sep 12, 2019 3:38 am
Forum: Advanced users
Topic: at least one HDMI mode on the Rpi4 has changed
Replies: 19
Views: 1387

Re: at least one HDMI mode on the Rpi4 has changed <solved>

I was so happy to have something work, I forgot this was in my config.txt # uncomment to force a specific HDMI mode (this will force VGA) hdmi_group=2 hdmi_cvt=1366 768 60 hdmi_mode=87 When I commented out the 3 lines like a clean system, the HDMI lapdock screen was not detected. Unplugging the HDMI...
by mwrich4
Tue Sep 10, 2019 9:33 pm
Forum: Advanced users
Topic: at least one HDMI mode on the Rpi4 has changed
Replies: 19
Views: 1387

Re: at least one HDMI mode on the Rpi4 has changed

Ran 'rpi-update' today on my latest card image. After a cold boot, the Rpi4 with my Atrix seems to be working as it did for previous RasPis. I'll update if I find this is not true. Thanks again for the response JamesH on this thread "https://github.com/raspberrypi/firmware/issues/1202". I expect tha...
by mwrich4
Wed Jul 31, 2019 4:08 am
Forum: Advanced users
Topic: at least one HDMI mode on the Rpi4 has changed
Replies: 19
Views: 1387

Re: at least one HDMI mode on the Rpi4 has changed

In https://github.com/raspberrypi/firmware/issues/1202, 6by9 (a Raspberry Pi engineer) said: These blocks being the part of the chip that produces the display - HVS being Hardware Video Scaler. A fix for the bug will be available in the next few days. Once it is, run the following to get it: sudo r...
by mwrich4
Mon Jul 29, 2019 9:59 pm
Forum: Advanced users
Topic: at least one HDMI mode on the Rpi4 has changed
Replies: 19
Views: 1387

Re: at least one HDMI mode on the Rpi4 has changed

Actually, per https://github.com/raspberrypi/firmware/issues/1202 can you try this instead: hdmi_group=2 hdmi_cvt=1366 768 60 hdmi_mode=87 adding/changing these values in /boot/config.txt may have helped a bit. I'm not sure whether ultimately the above worked or if was simply connecting the Samsung...
by mwrich4
Mon Jul 29, 2019 8:12 pm
Forum: Advanced users
Topic: at least one HDMI mode on the Rpi4 has changed
Replies: 19
Views: 1387

Re: at least one HDMI mode on the Rpi4 has changed

I installed edid-decode as recommended above. edid-decode.txt.gz With the recommend change to /boot/config.txt, I didn't see the post screen just now. Plus, the Xconsole was not started without me first booting with my main screen connected instead of the Lapdock. The pi desktop is set to 1280x720 b...
by mwrich4
Mon Jul 29, 2019 2:44 pm
Forum: Advanced users
Topic: at least one HDMI mode on the Rpi4 has changed
Replies: 19
Views: 1387

Re: at least one HDMI mode on the Rpi4 has changed

the changes suggested allow me to glimpse the rainbow and 4 berries screens

I will try more later.
edid.dat.gz
rpi4 output
(172 Bytes) Downloaded 15 times
edid.parse.txt.gz
rpi4 output text form
(1.03 KiB) Downloaded 21 times
by mwrich4
Mon Jul 29, 2019 12:49 am
Forum: Advanced users
Topic: at least one HDMI mode on the Rpi4 has changed
Replies: 19
Views: 1387

at least one HDMI mode on the Rpi4 has changed

I have a 'known good' monitor I've used for ALL of my Raspi boards from the first through 3B. Having it not work for my new Raspi 4-4GB, sent me on the will not boot path for a few hours. I've seen others mention it in the forums but not as a clear topic. I tried with the 3.2 noobs (no boot screen) ...
by mwrich4
Sat Jul 27, 2019 2:11 am
Forum: Troubleshooting
Topic: pi4 can't get video on a hdmi moitor [Solved]
Replies: 18
Views: 1131

Re: pi4 can't get video on a hdmi monitor

my pi4 works fine on my main telly but I bought a little screen for it which I can't get anything from (not even the initial rainbow splash) It works super with pi3 - giving really clear readable text in 1080p even with tiny fonts! so I really would like to get this monitor working with my pi4... e...
by mwrich4
Fri Jul 26, 2019 8:07 pm
Forum: General discussion
Topic: When are people in the U.S. getting their Pi 4s?
Replies: 156
Views: 11416

Re: When are people in the U.S. getting their Pi 4s?

Just received a Pi 4, 4GB from Canakit.com. I ordered it via Amazon on Prime Day.

They still show having them in stock as of yesterday.
by mwrich4
Sat Jul 06, 2019 7:42 pm
Forum: Advanced users
Topic: headless Pi using small LCD with touch GUI, separate from HDMI main
Replies: 2
Views: 296

Re: headless Pi using 3.5 with touch GUI, separate from HDMI main

After some digging ... There are a couple of notable Git projects: 1) https://github.com/notro/fbtft 2) https://github.com/juj/fbcp-ili9341 #1 mentions that it is now part of the kernel build tree. #2 is a customized implementation similar to #1 but offers optimizations for SPI/display data bandwidt...
by mwrich4
Thu Jul 04, 2019 1:07 am
Forum: Advanced users
Topic: headless Pi using small LCD with touch GUI, separate from HDMI main
Replies: 2
Views: 296

Re: headless Pi using 3.5 with touch GUI, separate from HDMI main

Additional thoughts. I've written and implemented a touch LCD on a bare metal project before. There are a lot of pieces to craft and it was tedious. In an effort to avoid reinventing the wheel, I had hoped that the rich development environment of *nix would have widgets already built for these tasks...
by mwrich4
Wed Jul 03, 2019 3:34 pm
Forum: Advanced users
Topic: headless Pi using small LCD with touch GUI, separate from HDMI main
Replies: 2
Views: 296

headless Pi using small LCD with touch GUI, separate from HDMI main

Has anyone found a method for developing and using the common 3.5 inch waveshare board (LCD, touchscreen via SPI) ? I would like to see it used as a separate device for GUI, not cloning the main screen. Any language and/or platform is fine. I think it would be worth a post a blog with a simple proje...
by mwrich4
Mon Apr 22, 2019 6:13 pm
Forum: General discussion
Topic: Can a 128GB SD card work as memory?
Replies: 16
Views: 8371

Re: Can a 128GB SD card work as memory?

Esoteric arguments benefit no one but the participants. It is most likely they were concerned, as so many are, about SD card support for a high-density card. Most people are not familiar with the subtleties of flash memory cards not being referred to as RAM or memory by purists. We have a large prop...
by mwrich4
Sun Apr 21, 2019 3:26 pm
Forum: General discussion
Topic: Can a 128GB SD card work as memory?
Replies: 16
Views: 8371

Re: Can a 128GB SD card work as memory?

Yes, the 128GB will work as a flash drive.

( for a site of so-called experts, why does the simplest response require so much bickering and still not answer the question directly)

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